Tobacco pipe



' July 21, 1925.

B. W. JQHNSON TOBACCO PIPE Filed July 13. 1922 gnucnfoc B F1 Jblwzaon.

Patented July 21, 1925,

UNITED STATES PATENT OFFICE.

TOBACCO PIPE.

Application filed July 13, 1922. Serial No. 574,608.

To all whom it may concern: 7

Be it known that I, BURT W. JOHNSON, acitizen of the United States, residing at Lansing, in the county oi lngham and State of Michigan, have invented certain new and useful Improvements in Tobacco Pipes; and I do hereby declare the following to be a full, clear, and exact description of the invent-ion, such as will enable others skilled in the art to which it appertains to make and use the same.

The object of the present invention is to eliminate mouth moisture and insure a dry and clean smoke and obviate toui' of the pipe and the collection of tluid therein.

Other objects and advantages will be apparent and suggest themselves as the nature of the invention is understood.

lVhile the drawings illustrate an embodiment of the invention it is to be understood that in adapting the same to meet different conditions and requirements, various,

changes in the form, proportion and minor details of construction may be resorted to without departing from the nature oi the invention.

Referring to the accompanying drawings forming a part of the application,

Figure 1 is a perspective view of a tobacco pipe embodying the invention,

Figure 2 a top plan view of the end, showing the parts on a larger scale,

Figure 3 is a detail perspective view oi the tip of the stem, the valve being detached,

Figure 4 is a detail perspective view of the valve, and Figure 5 is a cross section on the plane indicated by the line 55 of Figure 4:.

Corresponding and like parts are referred to in the -following description and designated in the several views of the drawings by like reference characters.

The tobacco pipe illustrated is of on dinary construction and has been selected to demonstrate the application 01": the in vention. The tip of the stem 1 is enlarged as indicated at 2 to be engaged by the lips or teeth whereby to conveniently hold the The valve 5 may be of any material and is pivoted to open upwardly and close downwardly and normally remain closed by gravitative action. The valve is oi concavoconveX form and arranged with the hollow side adjacent the end of the stem so as to prevent sticking and insure a free movement so as to readily open by suction when smoking and positively close and prevent any moisture trom entering the stem when the pipe is inert and no smoke being drawn therethrough. The valve 5 responds readily so as to open quickly for the passage of the smoke and to close instantly when suction ceases, thereby preventing the breath or moisture passing from the mouth into the opening of the stem with the result that a clean dry smoke is assured.

What is claimed is:

1. A pipe stem having a valve pivotally mounted at the month end and adapted to open and close during smoking, said valve being exteriorly convened and exposed for direct engagement by the tongue, and said valve being interiorly concave.

2. A pipe stem having its month end provided with a groove, a valve for closing the month end and having an ear engaging in said groove, and a pintle engaging the stem and an opening in the ear to permit the valve to open and close, said valve being concavo-convex in form for the purpose. stated.

In testimony whereof I aiiix my signature in presence of two Witnesses.

BURT W. JOHNSON. Witnesses LAIRD J. Tnovnn, LESLIE G. VVoNcn. 

